WO2013188822A2 - Systèmes à courant alternatif permettant d'alimenter des outils électriques sans fil - Google Patents

Systèmes à courant alternatif permettant d'alimenter des outils électriques sans fil Download PDF

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Publication number
WO2013188822A2
WO2013188822A2 PCT/US2013/045980 US2013045980W WO2013188822A2 WO 2013188822 A2 WO2013188822 A2 WO 2013188822A2 US 2013045980 W US2013045980 W US 2013045980W WO 2013188822 A2 WO2013188822 A2 WO 2013188822A2
Authority
WO
WIPO (PCT)
Prior art keywords
power
cordless
electrical
interface adapter
tool
Prior art date
Application number
PCT/US2013/045980
Other languages
English (en)
Other versions
WO2013188822A3 (fr
Inventor
Selvin Kao
Philip Carlo J. DEGUZMAN
Original Assignee
Standard Cable USA, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Standard Cable USA, Inc. filed Critical Standard Cable USA, Inc.
Publication of WO2013188822A2 publication Critical patent/WO2013188822A2/fr
Publication of WO2013188822A3 publication Critical patent/WO2013188822A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections

Definitions

  • the present invention relates in genera! to power toots. More particularly, the invention is directed to power adapters for cordless power tools.
  • Cordless power tools provide several advantages over traditional, corded tools such as offering increased convenience and mobility, as well as the ability to work at jobsites which do not have electrical power.
  • the battery packs of the cordless power tools are rapidly drained. As such, users must either purchase multiple battery packs or use conventional corded power tools.
  • an electrical power assembly for powering a cordless power tool configured for coupling to replaceable battery packs.
  • the electrical power assembly comprises a power interface adapter configured for mating with and providing direct current to the cordless power tool.
  • the power interface adapter further comprises an alternating current to direct current (“AC/DC”) power converter, the AC/DC power converter receiving alternating current and generating direct current, one or more electrical connectors coupled to the AC/DC power converter and configured for supplying direct current to the cordless power tool, and a housing surrounding the AC/DC power converter and exposing the one or more electrical connectors for electrical contact to the cordless power tool.
  • AC/DC alternating current to direct current
  • the electrical power assembly further comprises an AC electrical connector for coupling to an alternating current power source and receiving alternating current, and a power cord connected to the AC electrical connector and AC/DC power converter, the power cord providing the alternating current to the AC/ DC power converter.
  • the power interface adapter preferably mates with the cordless power tool in substantially the same manner as the replaceable battery pack mates with the cordless power tool.
  • the shape of the power interface adapter is preferably substantially similar to the shape of the battery pack.
  • a portion of the cordless power tool preferably at least partially surrounds the power interface adapter when the power interface adapter is mated with the cordless power tool,
  • the AC/ DC power converter preferably comprises a switching power source.
  • the AC/ DC power converter preferably comprises a transformer.
  • the power cord is preferably coupled to the power interface adapter via a swivel connector.
  • an electrical power assembly for powering a cordless power too! configured for coupling to replaceable battery packs .
  • the electrical power assembly comprises a wall mountable AC/DC power converter having integrated AC electrical connectors, the AC/DC power converter receiving alternating current and generating direct current, a power cord connected to the AC/DC power converter, the power cord receiving direct current, and a power interface adapter configured for mating with and providing direct current to the cordless power tool.
  • the power interface adapter further comprises one or more electrical connectors coupled to the power cord and configured for supplying direct current to the cordless power tool, and a housing exposing the one or more electrical connectors for electrical contact to the cordless power tool.
  • the power interface adapter mates with the cordless power tool in substantially the same manner as the battery pack mates with the cordless power tool.
  • the shape of the power interface adapter is preferably substantially similar to the shape of the battery pack.
  • the cordless power tool preferably at least partially surrounds the power interface adapter when the power interface adapter is mated with the cordless power tool.
  • the AC/DC converter preferably comprises a switching power source.
  • the AC/DC converter preferably comprises a transformer.
  • an electrical power assembly for powering a cordless power tool for coupling to replaceable battery packs.
  • the electrical power assembly comprises an AC/DC power converter, the AC/DC power converter receiving alternating current and generating direct current, and a power interface adapter configured for mating with the cordless power tool, the power interface adapter receiving the direct current from the AC/DC power converter and powering the cordless power tool.
  • the power interface adapter mates with the cordless power tool in substantially the same manner as the battery pack mates with the cordless power tool.
  • the shape of the power interface adapter is preferably substantially similar to the shape of the battery pack.
  • the cordless power tool preferably at least partially surrounds the power interface adapter when the power interface adapter is mated with the cordless power tool.
  • the AC/ DC converter preferably comprises a switching power source.
  • the AC/DC converter preferably comprises a transformer.
  • FIG. 1 is an exploded view of an exemplary cordless power tool.
  • FIG. 2 is a side, perspective view of an electrical power assembly having a power interface adapter with an internal AC-DC converter in an embodiment.
  • FIG, 3 is another side, perspective view of the electrical power assembly showing the electrical contacts and the mating tab on the power interface adapter.
  • FIG. 4 is a side, perspective view of a cordless power tool coupled with the electrical power assembly depicted in FIGS. 2 and 3.
  • FIG. 5 is a side view of an electrical power assembly having the AC-DC converter within a wall mountabie electrical plug in an embodiment.
  • FIG. 6 is a front, perspective view of the electrical power assembly having the AC- DC converter with the wall mountabie electrical plug.
  • FIG. 7 is a side, perspective view of the cordless power tool coupled with the electrical power assembly depicted in FIGS. 5 and 6.
  • the following preferred embodiments are directed to alternating current ⁇ "AC" power systems for powering cordless power tools.
  • Most cordless power tools are powered using direct current (“DC") from rechargeable battery packs which snap into and mechanically engage with the bodies of the power tools.
  • DC direct current
  • a fully charged battery pack may not have sufficient capacity to complete a job.
  • contractors and other users would normally purchase several DC replacement battery packs which may be alternately used while the others are charging.
  • electrical power assemblies may be plugged in directly to any AC wall socket and may have a power interface adapter shaped as a replaceable battery pack to mate with the power tool.
  • the AC/DC power converter is located inside the power interface adapter and is powered by a power supply cord connected to an AC plug.
  • the power interface adapter is attached directly into the main power tool.
  • the AC/DC power converter located inside the power interface adapter is equipped with a power supply cord that would carry power from the AC outlet to the AC/DC converter. The AC/DC circuit will then convert AC power to DC to run the motor in the power tool for example.
  • inventions may comprise of a wall mountab!e plug-in AC/DC converter, a power supply cord, and a power interface adapter shaped as a battery casing.
  • the AC/DC power converter is located in the wall-plug rather than the power interface adapter,
  • cordless power tools generally refer to electrical power tools that use rechargeable batteries.
  • cordless power tools include, but are not limited to drills, hammer drills, drivers, saws, rotary tools, vacuums, flashlights, cutters, nailers, and sanders for example.
  • Alternating current may refer to the form of electric power delivered to businesses and residences, and may have a frequency of 50 or 60 Hertz, and may commonly have a potential of 120 or 220 - 240 volts.
  • Direct current may refer to current having a generally one directional flow of charge.
  • the replaceable battery pack as used herein and is commonly known in the art generally refers to a group of one or more battery cells electrically connected together and contained within a housing having electrical contacts which provide current to a cordless power tool.
  • the battery packs may rely on nickel-cadmium or iithium-ion technologies and may be available as 7.2, 12, 18, 24, 28, and 36rois battery packs.
  • the battery pack housing may be shaped to be received and engaged by a cordless power tool.
  • the battery pack may engage with a cordless power tool at the bottom of a handle grip of a cordless drill for example, or the battery pack may engage with the cordless tool at the side of the tool.
  • the shape of the battery pack generally varies with the manufacturer, but many battery packs may have a curved, generally rectangular prismatic shaped base having a length and a width perpendicular to the direction of insertion into the cord!ess power tool. Some battery packs may have a protrusion extending above the base along the height of the battery pack.
  • the lengths and widths of the battery pack may be in the range of approximately 2 inches to approximately 6 inches.
  • the height of the battery pack may be in the range from approximately 3 inches to approximately 6 inches for battery packs having a protrusion.
  • the height may be in the range of approximately 2 inches to approximately 4 inches for battery packs without a protrusion.
  • FIG. 1 is an exploded view of an exemplary cordless power tool system 1.
  • the cordless power tool system 1 includes a power too! 150 and a replaceable battery pack 10.
  • the battery pack 10 has a housing 8 which includes a mating tab 14.
  • the housing 8 also has one or more electrical connectors 12 which are connected to one or more electric ceils (not shown) providing direct current.
  • the power tool 150 has a battery pack receiving cavity 152 which may be inversely shaped to that of the housing 8. A user aligns the battery pack 10 with the receiving cavity 152 on the power tool 150, and places the battery pack 10 into the receiving cavity 152 such that one or more mounting mechanisms such as tab 14 secures the battery pack 10 into the receiving cavity 152.
  • a portion of the cordless power tool 150 may at least partially surround the battery pack 10 when the battery pack 10 is mated with the cordless power tool 150.
  • the receiving cavity 152 has electrical contacts which mate with the electrical connectors 2 to provide direct current to the power tool 150.
  • the user may readily remove the battery pack 10 from the power too! 150 and replace the battery pack 10 with a fully-charged battery pack.
  • FIGS. 2 and 3 are perspective views of an electrical power assembly 101 having a power interface adapter 1 10 with an internal AC-DC converter 106 depicted by dashed lines in FIG. 2.
  • FIG. 4 is a side, perspective be of a cordless power tool 150 coupled with the electrical power assembly 101 depicted in FIGS. 2 and 3.
  • the electrical power assembly 101 may comprise an AC electrical connector 102 coupled to an alternating current source, a power cord 104, and the power interface adapter 110.
  • the AC electrical connector 102 receives alternating current from an alternating current source.
  • the power cord 104 is connected to the AC electrical connector 102 via wires 103.
  • the power cord 104 is also connected to the AC/DC converter 106 via wires 105.
  • the AC/ DC power converter 106 may comprise a switching power source and / or a transformer in one or more embodiments.
  • the power cord 104 may be coupled to the power interface adapter 1 10 via a swivel connector 120.
  • the AC/DC power converter 106 receives alternating current and generates direct current to the eiectrica!
  • the power interface adapter 1 10 is configured for mating with and powering a cordless power tool 150.
  • the power interface adapter 1 10 may have one or more electrical connectors 1 12 coupled to the AC/DC power converter 106 which supplies direct current to the cordless power tool 150.
  • the power interface adapter 1 10 also has a housing 108 which surrounds the AC/DC power converter 106 and exposes one or more of the electrical connectors 1 12 which provide eiectrica! contact to the cordless power too! 150.
  • the power interface adapter 1 10 has similar features and shape as that of the replaceable battery pack 10 shown in FIG. 1.
  • the power interface adapter 1 10 mates with the cordless power tool 150 in substantially the same manner as the replaceable battery pack 10 mates with the cordless power too! 150.
  • the power interface adapter 1 10 may have a shape and contour which allows the power interface adapter 101 to be received in the battery pack receiving cavity 152 in much the same manner as the replacement battery pack 10 is received in the receiving cavity 152.
  • the power interface adapter 1 10 may have mechanical mounting mechanisms such as tab 1 14 which corresponds to the tab 14 in the replaceable battery pack 10.
  • the power interface adapter 1 10 may have electrical connectors 1 2 similar to the electrical connectors 12 in the battery pack 10, A portion of the cordless power tool 150 may at least partia!ly surround the power interface adapter 1 10 when the power interface adapter 101 is mated with the cordless power too! 150.
  • FIGS. 5 and 6 are views of an electrical power assembly 201 where the AC-DC converter 206 is located within a wall mountable electrical plug 202 in an embodiment.
  • FIG. 7 is a side, perspective view of the cordless power tool 150 coupled with the electrical power assembly depicted in FIGS. 5 and 6.
  • the electrical power assembly 201 may comprise a wall mountable electrical plug 202 coupled to an alternating current source via prongs 204, a power cord 220, and the power interface adapter 210.
  • the wall mountable electrical plug 202 receives alternating current from an alternating current source.
  • the wall mountable AC/DC power converter 202 has an AC/DC power converter 206 receiving alternating current and generating direct current.
  • the AC/ DC power converter 206 may comprise a switching power source and / or a transformer in one or more embodiments.
  • the power cord 220 is connected to wall mountable electrical plug 202 via wires 221 .
  • the power cord 220 is also connected to power interface adapter 210 and direct current is delivered to the electrical connections 1 12 via wires 21 1 .
  • the power cord 220 may be coupled to the power interface adapter 210 via a swivel connector 120.
  • the power interface adapter 210 is configured for mating with and powering a cordless power tool 150.
  • the power interface adapter 210 may have one or more electrica! connectors 1 12 coupled to the power cord 220 which supplies direct current to the cordless power tool 150,
  • the power interface adapter 210 also has a housing 208 which surrounds the internal wiring 21 1 and exposes one or more electrical connectors 1 12 which provide electrical contact to the cordless power too! 150.
  • the power interface adapter 210 has similar features and shape as that of the replaceable battery pack 10 shown in FIG. 1 . Hence, in one or more embodiments, the power interface adapter 210 mates with the cordless power tool 150 in substantially the same manner as the replaceable battery pack 10 mates with the cordless power tool 150.
  • the power interface adapter 210 may have a shape and contour which allows the power interface adapter 101 to be received in the battery pack receiving cavity 152 in much the same manner as the replacement battery pack 10 is received in the receiving cavity 152.
  • the power interface adapter 210 may have mechanical mounting mechanisms such as tab 1 14 which corresponds to the tab 14 in the replaceable battery pack 10.
  • the power interface adapter 210 may have electrical connectors 1 12 similar to the electrical connectors 12 in the battery pack 10.
  • a portion of the cordless power tool 150 may at least partially surround the power interface adapter 1 10 when the power interface adapter 101 is mated with the cordless power tool 150.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente invention concerne des systèmes à courant alternatif permettant d'alimenter des outils électriques sans fil. Un ensemble à courant électrique comprend un convertisseur de courant alternatif en courant continu (« CA/CC ») raccordé à un adaptateur d'interface d'alimentation. Le convertisseur CA/CC reçoit un courant alternatif par l'intermédiaire d'une prise électrique et produit un courant continu. Un adaptateur d'interface d'alimentation ayant une forme similaire à celle des blocs-batteries de remplacement est raccordé aux outils électriques sans fil et les alimente en courant continu. Le convertisseur CA/CC peut être situé dans l'adaptateur d'interface d'alimentation ou dans un connecteur électrique mural.
PCT/US2013/045980 2012-06-15 2013-06-14 Systèmes à courant alternatif permettant d'alimenter des outils électriques sans fil WO2013188822A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261660629P 2012-06-15 2012-06-15
US61/660,629 2012-06-15

Publications (2)

Publication Number Publication Date
WO2013188822A2 true WO2013188822A2 (fr) 2013-12-19
WO2013188822A3 WO2013188822A3 (fr) 2014-02-27

Family

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Family Applications (1)

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PCT/US2013/045980 WO2013188822A2 (fr) 2012-06-15 2013-06-14 Systèmes à courant alternatif permettant d'alimenter des outils électriques sans fil

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Country Link
US (1) US20130334898A1 (fr)
WO (1) WO2013188822A2 (fr)

Families Citing this family (9)

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Publication number Priority date Publication date Assignee Title
EP2110921B1 (fr) 2008-04-14 2013-06-19 Stanley Black & Decker, Inc. Système de gestion de batterie pour outil sans fil
US20140167514A1 (en) * 2012-12-14 2014-06-19 Raz Imports, Inc. Method and Apparatus for Powering a Battery-Operable Device with an External Source of Power
GB2542742A (en) 2014-05-18 2017-03-29 Black & Decker Inc Power tool system
US9893384B2 (en) 2014-05-18 2018-02-13 Black & Decker Inc. Transport system for convertible battery pack
GB2534413A (en) * 2015-01-23 2016-07-27 Loan Chira Daniel Power adaptor for cordless tools
US9956678B1 (en) 2015-08-25 2018-05-01 Adnan Abu-Saleh Rechargeable drill having rotatable prongs
EP3560062A4 (fr) 2016-12-23 2020-06-24 Black & Decker Inc. Système d'outil électrique sans fil
EP3719984A4 (fr) * 2017-11-30 2021-08-18 Koki Holdings Co., Ltd. Dispositif d'alimentation en courant continu
DE112020004755T5 (de) * 2019-10-02 2022-06-15 Husqvarna Ab Batterieadapterbaugruppe und handgehaltenes angetriebenes Werkzeug

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US6675912B2 (en) * 1998-12-30 2004-01-13 Black & Decker Inc. Dual-mode non-isolated corded system for transportable cordless power tools
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US7077179B1 (en) * 2003-07-29 2006-07-18 Abc Product Development, L.L.C. Cordless power tool and multi-purpose workstation system
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Publication number Priority date Publication date Assignee Title
US4835410A (en) * 1988-02-26 1989-05-30 Black & Decker Inc. Dual-mode corded/cordless system for power-operated devices
US6675912B2 (en) * 1998-12-30 2004-01-13 Black & Decker Inc. Dual-mode non-isolated corded system for transportable cordless power tools
US6243276B1 (en) * 1999-05-07 2001-06-05 S-B Power Tool Company Power supply system for battery operated devices
US8042622B2 (en) * 2006-03-20 2011-10-25 Atlas Copco Tools Ab Electric power tool with swivelled cable connection

Also Published As

Publication number Publication date
US20130334898A1 (en) 2013-12-19
WO2013188822A3 (fr) 2014-02-27

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